US President Donald Trump's comments that a trade deal with China might have to wait until late 2020 raised fresh doubts on when the dispute might end, while a US House bill targeting camps for Muslims in Xinjiang drew Beijing's ire.
"In some ways, I like the idea of waiting until after the election for the China deal. But they want to make a deal now, and we'll see whether or not the deal's going to be right," Trump told reporters in London on Tuesday, triggering a sharp fall in stocks and a flight to government bonds.
The US House of Representatives' approval of a bill requiring the Trump administration to toughen its response to China's crackdown on Uighur Muslims in the western region of Xinjiang could deal another setback to the trade negotiations.
The Uighur bill, which was passed 407-1 in the Democratic-controlled House, requires the US president to condemn abuses against Muslims and call for the closure of mass detention camps in Xinjiang. It calls on Trump to impose sanctions for the first time on a member of China's powerful politburo, Xinjiang Communist Party Secretary Chen Quanguo.
Beijing called the bill a malicious attack on China, demanded the United States keep it from becoming law and said it would act to defend its interests as necessary.
A person familiar with the Chinese government's stance on the trade negotiations told Reuters the phase one trade deal could be in jeopardy if the House bill on Uighurs becomes law.
Negotiators for both countries have continued to work on a so-called phase one trade deal, but sources familiar with the talks say Beijing and Washington are still wrangling over the details including whether existing US tariffs on Chinese goods will be removed and how much in additional US agricultural products China will buy.
US Commerce Secretary Wilbur Ross told CNBC on Tuesday that staff-level trade negotiations with China are continuing but no high-level trade talks have been scheduled. The planned tariffs on remaining Chinese imports will take effect on December 15 if there is no significant progress in the talks or a deal, he said.
The Uighur bill still has to be approved by the Republican-controlled Senate before being sent to Trump. The White House has yet to say whether Trump would sign or veto the bill, which contains a provision allowing the president to waive sanctions if he determines that to be in the national interest.
Dilxat Raxit, spokesman for the World Uyghur Congress, said in a statement the House bill is an important action opposing "China's continued push of extreme persecution" and that the organisation looks forward to Trump signing it into law.
Analysts say China's response to passage of the Uighur bill could be stronger than its reaction to the US law supporting Hong Kong protesters. Beijing said on Monday it banned US military ships and aircraft from visiting the island and sanctioned several US-based non-government organisations.
China's foreign ministry did not specify on Wednesday what retaliatory measures are being considered. Global Times, an influential tabloid published by the official newspaper of China's ruling Communist Party, tweeted on Tuesday that Beijing would soon release a so-called unreliable entities list imposing sanctions against those who harm China's interests.
The paper said China was expediting the process for the list because the US House bill would "harm Chinese firms' interests", and that "relevant" US entities would be among the targets.
Chinese government sources told Reuters in October the list's publication will depend on the state of the trade negotiations; one of them said at the time that Beijing would hold off on releasing the list until the trade situation with the United States "is at its most tense."